The technique of preparing mitotic chromosomes involves a staining procedure using Giemsa stain. In this procedure, chromosomes are first ________ and then exposed to stain, producing ________ in a standard human karyotype.
A) heated; hundreds of reproducible bands
B) heated; thousands of reproducible bands
C) fragmented; hundreds of reproducible bands
D) fragmented; hundreds of variable bands
A) heated; hundreds of reproducible bands
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Photoautotrophs use light energy directly for
A. the reduction of carbon dioxide to glucose. B. the production of ATP and NADPH. C. both the production of ATP and NADPH and the reduction of carbon dioxide to glucose. D. neither the production of ATP and NADPH nor the reduction of carbon dioxide to glucose.
In both progeria and Werner syndrome, cells are switched from a growth to a maintenance mode, halting
____________________. Fill in the blank(s) with the appropriate word(s).
What are the three areas of the inner ear?
What will be an ideal response?
Trait SpeciesABCDE100100210101310101411100511110611110The table shows the distribution of traits (A-E) in six extant species (1-6). A "0" indicates the ancestral condition, and a "1" indicates the derived condition. Which trait is least informative of phylogenetic relationships within the group?
A. A B. B C. C D. D E. E